Fixed creating new filter options in FilterBox (#3584)
Fixed creating new filter options in FilterBox (#3584)


apache/incubator-superset,zhouyao1994/incubator-superset,mistercrunch/panoramix,dmigo/incubator-superset,apache/incubator-superset,airbnb/superset,zhouyao1994/incubator-superset,timifasubaa/incubator-superset,airbnb/superset,timifasubaa/incubator-superset,alanmcruickshank/superset-dev,dmigo/incubator-superset,airbnb/superset,timifasubaa/incubator-superset,alanmcruickshank/superset-dev,apache/incubator-superset,dmigo/incubator-superset,airbnb/caravel,airbnb/caravel,timifasubaa/incubator-superset,alanmcruickshank/superset-dev,zhouyao1994/incubator-superset,mistercrunch/panoramix,zhouyao1994/incubator-superset,apache/incubator-superset,airbnb/superset,mistercrunch/panoramix,mistercrunch/panoramix,airbnb/caravel,alanmcruickshank/superset-dev,dmigo/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel